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Quantification of intraepidermal nerve fiber density using three-dimensional microscopy.

Dai Hyun Kim1, Ji Eun Na1, Se Jeong Lee1

  • 1Department of Anatomy, Korea University College of Medicine, Seoul, South Korea.

Microscopy Research and Technique
|September 26, 2018
PubMed
Summary

Three-dimensional microscopy enhances intraepidermal nerve fiber analysis in skin biopsies. This advanced imaging reduces analysis time and inter-rater discrepancies, improving diagnostic accuracy for peripheral neuropathies.

Keywords:
intraepidermal nerve fibersperipheral neuropathyskin nerve biopsythree-dimensional microscopy

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Area of Science:

  • Medical Imaging
  • Neuroscience
  • Pathology

Background:

  • Conventional light microscopy has limitations in evaluating thick biological specimens.
  • Skin nerve biopsy and intraepidermal nerve fiber quantification are crucial for diagnosing peripheral neuropathies.
  • Reducing analysis time and inter-rater variability is essential for clinical adoption.

Purpose of the Study:

  • To evaluate the effectiveness of three-dimensional (3D) microscopy in analyzing intraepidermal nerve fibers.
  • To assess the impact of 3D microscopy on analysis time and inter-rater agreement.
  • To determine the utility of 3D microscopy for personnel unfamiliar with quantification methods.

Main Methods:

  • Analysis of six cryo-sectioned skin specimens from a patient with postherpetic neuralgia.
  • Comparison of analysis methods: direct visualization, 2D imaging, and 3D microscopy.
  • Assessment of intraepidermal nerve fiber density and analysis time by a physician and a non-physician.

Main Results:

  • Three-dimensional microscopy provided reliable images for intraepidermal nerve fiber evaluation.
  • Analysis accuracy was comparable between the physician and non-physician using 3D microscopy (p > .05).
  • The non-physician achieved significantly faster evaluations with 3D microscopy compared to direct visualization (p = .03).

Conclusions:

  • Three-dimensional microscopy improves the accuracy and convenience of intraepidermal nerve fiber analysis.
  • This method is particularly beneficial for physicians and non-physicians less experienced in nerve fiber quantification.
  • 3D microscopy offers a valuable tool for clinical evaluation of peripheral neuropathies.